[INFO] updating cached repository ormrepo/rustlings
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ormrepo/rustlings
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ormrepo/rustlings" "work/ex/beta-1.37-6/sources/1.36.0/gh/ormrepo/rustlings"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ormrepo/rustlings'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ormrepo/rustlings" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ormrepo/rustlings"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ormrepo/rustlings'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 07ca480f87f9db112f15cc5a208542c881bc7628
[INFO] sha for GitHub repo ormrepo/rustlings: 07ca480f87f9db112f15cc5a208542c881bc7628
[INFO] validating manifest of ormrepo/rustlings on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ormrepo/rustlings on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ormrepo/rustlings
[INFO] finished frobbing ormrepo/rustlings
[INFO] frobbed toml for ormrepo/rustlings written to work/ex/beta-1.37-6/sources/1.36.0/gh/ormrepo/rustlings/Cargo.toml
[INFO] started frobbing ormrepo/rustlings
[INFO] finished frobbing ormrepo/rustlings
[INFO] frobbed toml for ormrepo/rustlings written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ormrepo/rustlings/Cargo.toml
[INFO] crate ormrepo/rustlings already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ormrepo/rustlings against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ormrepo/rustlings:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 325c0fa430f2a85af0e179e64fbfaa23fe078c1da1b4ed7e07ac9282ca99d80c
[INFO] running `"docker" "start" "-a" "325c0fa430f2a85af0e179e64fbfaa23fe078c1da1b4ed7e07ac9282ca99d80c"`
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "325c0fa430f2a85af0e179e64fbfaa23fe078c1da1b4ed7e07ac9282ca99d80c"`
[INFO] running `"docker" "rm" "-f" "325c0fa430f2a85af0e179e64fbfaa23fe078c1da1b4ed7e07ac9282ca99d80c"`
[INFO] [stdout] 325c0fa430f2a85af0e179e64fbfaa23fe078c1da1b4ed7e07ac9282ca99d80c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ormrepo/rustlings:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 200e43e2e4fe85713be97d5bdd1841a9cb822ed50ce306d78dff06e6ebc05e6b
[INFO] running `"docker" "start" "-a" "200e43e2e4fe85713be97d5bdd1841a9cb822ed50ce306d78dff06e6ebc05e6b"`
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "200e43e2e4fe85713be97d5bdd1841a9cb822ed50ce306d78dff06e6ebc05e6b"`
[INFO] running `"docker" "rm" "-f" "200e43e2e4fe85713be97d5bdd1841a9cb822ed50ce306d78dff06e6ebc05e6b"`
[INFO] [stdout] 200e43e2e4fe85713be97d5bdd1841a9cb822ed50ce306d78dff06e6ebc05e6b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ormrepo/rustlings:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 2d3fee5447fc678456cd090d1a2529e338cfa88ded60493918f3f5ab8bd79509
[INFO] running `"docker" "start" "-a" "2d3fee5447fc678456cd090d1a2529e338cfa88ded60493918f3f5ab8bd79509"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_world-32ca29bbe05b8115
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2d3fee5447fc678456cd090d1a2529e338cfa88ded60493918f3f5ab8bd79509"`
[INFO] running `"docker" "rm" "-f" "2d3fee5447fc678456cd090d1a2529e338cfa88ded60493918f3f5ab8bd79509"`
[INFO] [stdout] 2d3fee5447fc678456cd090d1a2529e338cfa88ded60493918f3f5ab8bd79509